HVAC decarbonisation Software

Decarbonise Your Building Systems

Plan and implement HVAC strategies that reduce carbon emissions, enable electrification, and support your long-term ESG goals.

Talk to sales Get started for free

partial load analysis in the Hysopt Calculator

Model system upgrades for low-temperature and heat pump readiness

Simulate your current system’s performance and identify what changes are needed to enable electrification—without full infrastructure replacement.
Explore options like integrating heat pumps, hybrid systems, or low-temperature distribution to align with decarbonisation goals.
Compare upgrade scenarios across key KPIs: carbon impact, lifecycle cost, and comfort level.

Is your HVAC system ready for electrification?

Discover how the Hysopt Simulator models decarbonisation scenarios

Start your free trial

Request your trial today and experience the power of Hysopt first hand.

Try it for free

Design carbon-efficient system layouts that reduce energy demand

Create efficient, low-carbon HVAC designs using hydronic modelling that reflects real physical behavior.
Design for low flow rates, reduced distribution temperatures, and optimal part-load performance—key to lowering carbon footprint.
Minimise future retrofits by getting the system layout right from the start.

Need a design strategy that aligns with your ESG roadmap?

Explore how the Hysopt Designer supports low-carbon HVAC design

Power, Flow & Temperature Propagation in the Hysopt software

Quantify CO₂ reduction potential to support business and compliance cases

Automatically calculate the carbon impact of different design choices using verified physics-based models.
Present clear, data-backed reports to support investment decisions, regulatory compliance, or funding applications.
Communicate the real-world value of your HVAC decarbonisation strategy in language business leaders and regulators understand.

Need to prove carbon savings for your board or auditors?

See how the Hysopt Calculator quantifies carbon savings

Frequently asked questions

How can I decarbonise my HVAC systems without full replacement?

You can significantly reduce carbon emissions by retrofitting your existing HVAC system with low-temperature distribution, optimised control strategies, and heat pump-ready configurations. Hysopt’s simulation tools help identify targeted upgrades that avoid unnecessary replacements while achieving maximum CO₂ reduction.

What is low-temperature heating and why is it important?

Low-temperature heating delivers comfort using lower flow temperatures (typically below 55°C), which is more energy-efficient and essential for integrating with renewable technologies like heat pumps. Hysopt helps design and simulate these systems to ensure performance and compliance with decarbonisation goals.

Can Hysopt help plan for HVAC electrification?

Yes. Hysopt enables detailed modelling of system upgrades to assess readiness for electrification. You can simulate hybrid systems, evaluate heat pump integration, and analyse start/stop cycles—all crucial for smooth electrification of building systems.

How do I calculate CO₂ savings from HVAC upgrades?

Hysopt quantifies the carbon impact of your design decisions by calculating energy use, system efficiency, and emissions output. This allows you to compare scenarios and present clear, credible data for business cases, compliance, or ESG reporting.

Is this solution suitable for both retrofits and new builds?

Absolutely. Whether you're decarbonising an existing facility or designing a new low-carbon building, Hysopt supports both. Its modelling and validation tools adapt to any project type and help ensure long-term sustainability and regulatory alignment.